الفهرس 
ANATOMY OF ANTERIOR ABDOMINAL WALLOnly 14 pages are availabe for public view
 |  | from | 145 |  |  |
| | | from | 145 | | |
Abstract
Hernia is a protrusion of abdominal viscera through a defect in abdomen and includes Epigastric, Umbilical, Paraumbilical, Incisional and rare Spigelian hernia. The estimated incidence of ventral hernia is 15-20% of all abdominal wall hernias.
The incidence of post-operative wound infection and wound-related complications due to mesh repair aimed at continuing research into the optimal method of treatment of these hernias.
Two operative techniques most frequently used in case of ventral hernias repair are the onlay mesh repair (the mesh on the anterior fascia) and sublay mesh repair (retro-rectus or preperitoneal mesh placement).
Some recent studies show that the sublay technique has some advantages over onlay technique which include that it’s not transmitting infections from subcutaneous tissues down to the mesh as it lies quite deep. The mesh also adheres to the posterior rectus sheath and renders it inextensible allowing no future herniation.
In this study, comparative study between the two methods of surgical repair for ventral hernia was made.
The study performed on 40 adult patients with uncomplicated ventral hernias divided randomly into two equal groups as follows:
group A (Onlay mesh repair):
Twenty Patients were operated by placing the mesh over the anterior rectus sheath and the external oblique muscle.
group B (Sublay repair):
Twenty Patients were operated by placing the mesh in the retromuscular space.
In this study, no significant difference found between both groups according to:
o Age and gender.
o Type of ventral hernias.
o Size of defect in the ventral hernias.
o Hernia recurrence.
Significant difference found between both groups regarding:
• Duration of surgery (longer in group B).
• Time of drainage (longer in group A).
• Seroma formation (higher in group A).
• Wound infection (higher in group A).
• Postoperative hospital stays (longer in group A).
The present study, therefore, confirms the results obtained by some recent studies suggesting advantages of the sublay technique over the conventional onlay technique for repair of ventral hernias.